More than 80 people have been arrested as climate change protesters continued to block oil terminals.
Activists from Just Stop Oil said they had obstructed access to a tanker park and revealed an underground network of tunnels at two oil terminals in Essex.
The protesters are demanding the UK government stops new oil and gas projects.
Essex Police said 83 people were arrested for a variety of offences after protests in the Thurrock area.
The force said 63 were held on Friday following protests in Oliver Road, Grays, London Road, Purfleet, and Askew Farm Lane, Grays.
Twenty people were arrested on Saturday at Oliver Road and Stoneness Road, Grays, with officers “continuing to engage” with protesters at both sites, and at Purfleet.